[go: up one dir, main page]

FI840039A - STAOLFRAMSTAELLNINGSFOERFARANDE I VILKET CALCIUM BOXES ANVAENDS SOM BRAENSLE. - Google Patents

STAOLFRAMSTAELLNINGSFOERFARANDE I VILKET CALCIUM BOXES ANVAENDS SOM BRAENSLE. Download PDF

Info

Publication number
FI840039A
FI840039A FI840039A FI840039A FI840039A FI 840039 A FI840039 A FI 840039A FI 840039 A FI840039 A FI 840039A FI 840039 A FI840039 A FI 840039A FI 840039 A FI840039 A FI 840039A
Authority
FI
Finland
Prior art keywords
calcium
staolframstaellningsfoerfarande
anvaends
braensle
vilket
Prior art date
Application number
FI840039A
Other languages
Finnish (fi)
Other versions
FI840039A0 (en
Inventor
Balkishan Agrawal
Original Assignee
Union Carbide Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Publication of FI840039A0 publication Critical patent/FI840039A0/en
Publication of FI840039A publication Critical patent/FI840039A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/34—Blowing through the bath
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless steel

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Catalysts (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Furnace Details (AREA)
  • Heat Treatment Of Steel (AREA)

Abstract

Calcium carbide is efficiently and safely employed to provide heat to a steel melt during subsurface refining by providing the steel melt with acidic component(s) and/or oxidizable component(s), which when oxidized will yield acidic components, in a amount sufficient to flux the products of calcium carbide oxidation, while insuring that the calcium carbide does not reside in the bath for more 5 minutes prior to the initiation of its oxidation.
FI840039A 1983-01-06 1984-01-05 STAOLFRAMSTAELLNINGSFOERFARANDE I VILKET CALCIUM BOXES ANVAENDS SOM BRAENSLE. FI840039A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/456,113 US4477278A (en) 1983-01-06 1983-01-06 Steelmaking process using calcium carbide as fuel

Publications (2)

Publication Number Publication Date
FI840039A0 FI840039A0 (en) 1984-01-05
FI840039A true FI840039A (en) 1984-07-07

Family

ID=23811481

Family Applications (1)

Application Number Title Priority Date Filing Date
FI840039A FI840039A (en) 1983-01-06 1984-01-05 STAOLFRAMSTAELLNINGSFOERFARANDE I VILKET CALCIUM BOXES ANVAENDS SOM BRAENSLE.

Country Status (20)

Country Link
US (1) US4477278A (en)
EP (1) EP0115271B1 (en)
JP (1) JPS59133311A (en)
KR (1) KR890003928B1 (en)
AT (1) ATE21705T1 (en)
AU (1) AU563564B2 (en)
BR (1) BR8400015A (en)
CA (1) CA1219130A (en)
DE (1) DE3460511D1 (en)
ES (1) ES8602144A1 (en)
FI (1) FI840039A (en)
HU (1) HUT34551A (en)
IL (1) IL70625A (en)
IN (1) IN159990B (en)
NO (1) NO840034L (en)
PH (1) PH20011A (en)
PL (1) PL142034B1 (en)
TR (1) TR21818A (en)
YU (1) YU1084A (en)
ZA (1) ZA8493B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040552A (en) * 1988-12-08 1991-08-20 Philip Morris Incorporated Metal carbide heat source
US5188130A (en) * 1989-11-29 1993-02-23 Philip Morris, Incorporated Chemical heat source comprising metal nitride, metal oxide and carbon
US5146934A (en) * 1991-05-13 1992-09-15 Philip Morris Incorporated Composite heat source comprising metal carbide, metal nitride and metal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3666445A (en) * 1967-12-26 1972-05-30 Kaiser Ind Corp Auxiliary composition for steel-making furnaces
DE2527156B2 (en) * 1975-06-18 1980-09-04 Thyssen Niederrhein Ag Huetten- Und Walzwerke, 4200 Oberhausen Process for the pretreatment of molten steel in continuous casting
US4187102A (en) * 1978-08-24 1980-02-05 Union Carbide Corporation Method for controlling the temperature of the melt during pneumatic refining of steel
GB2052563B (en) * 1979-06-25 1983-10-12 Sueddeutsche Kalkstickstoff Process for the treatment of molten iron with increased scrap content
US4278464A (en) * 1979-12-27 1981-07-14 Union Carbide Corporation Method for preventing slopping during subsurface pneumatic refining of steel

Also Published As

Publication number Publication date
IN159990B (en) 1987-06-20
PH20011A (en) 1986-08-28
JPS59133311A (en) 1984-07-31
ES528704A0 (en) 1985-11-01
US4477278A (en) 1984-10-16
PL142034B1 (en) 1987-09-30
AU563564B2 (en) 1987-07-16
FI840039A0 (en) 1984-01-05
EP0115271A1 (en) 1984-08-08
TR21818A (en) 1985-07-25
EP0115271B1 (en) 1986-08-27
IL70625A (en) 1987-02-27
KR890003928B1 (en) 1989-10-12
BR8400015A (en) 1984-08-14
JPH0137450B2 (en) 1989-08-07
CA1219130A (en) 1987-03-17
NO840034L (en) 1984-07-09
PL245617A1 (en) 1984-09-24
ES8602144A1 (en) 1985-11-01
DE3460511D1 (en) 1986-10-02
AU2311784A (en) 1984-07-12
ZA8493B (en) 1984-08-29
HUT34551A (en) 1985-03-28
YU1084A (en) 1986-06-30
ATE21705T1 (en) 1986-09-15
IL70625A0 (en) 1984-04-30
KR840007440A (en) 1984-12-07

Similar Documents

Publication Publication Date Title
GB2110932A (en) Method and composition for treating acne
ATE27297T1 (en) PROCESS FOR MECHANICAL WORKING OF CAST IRON AND AN AQUEOUS CONCENTRATE FOR USE IN SUCH PROCESS.
DK245184D0 (en) COOL-WATER MIXTURES INCLUDING NON-IONIC AND ANIONIC SURFACTURING MATERIALS
FI840039A0 (en) STAOLFRAMSTAELLNINGSFOERFARANDE I VILKET CALCIUM BOXES ANVAENDS SOM BRAENSLE
KR880701452A (en) Apparatus and method for controlling an electromagnet by energizing with an AC current and causing engagement of two parts
DE3676490D1 (en) PULP PRE-TREATMENT PROCESS WITH STABILIZING AGENTS AND PEROXIDE BEFORE MECHANICAL REFINING.
JPS51143483A (en) Method of deoxidizing disposal of foods and to preserve the same
DE3461198D1 (en) Safe liquid composition for the ignition of solid fuels
JPS5284837A (en) Device for fitting driving components of automatic door
JPS53108068A (en) Purifying method for waste solution formed in takahax desulfurization apparatus
FI841776A0 (en) OXITETRACYKLINLOESNINGAR.
DE3481847D1 (en) REGENERATION OF THE NAD (P) COFACTOR.
FI863194A0 (en) FOERFARANDE FOER DELIGNIFIERING AV CELLULOSAMATERIAL.
JPS52105455A (en) Electric chain block including detachable chain guide
GB2069538B (en) Phosphate composition for the treatment of oxidized ferrous metals
JPS5284838A (en) Device for fitting driving compcomponents of automatic doors
JPS51114095A (en) Concentration power reduction monitoring unit
SU884288A1 (en) Method of purifying oil residues
JPS52137628A (en) Transporting method and tool for transformer associated with noise prevention wall
JPS5231987A (en) Deterioration inhibitor for organic materials
JPS5231986A (en) Deterioration inhibitor for organic materials
JPS5280676A (en) Fluorescent lamp for health promoting illumination

Legal Events

Date Code Title Description
FD Application lapsed

Owner name: UNION CARBIDE CORPORATION